SEO Doctor is a newly launched FireFox addon that has tons of useful SEO features; I am looking at only a few of them below (to see the more detailed overview, check out Vladimir’s post).

Status Bar Stats

One of the first features you’ll notice on installation is some cool SEO-relevant stats that loads (on request) in the browser status bar while you are browsing the pages. The numbers displayed stand for:

SEO Score represents the result of on-site optimization analysis of the currently viewed page (the flag icon will give you an idea of how well you are doing)

Flow shows how much of the Page Rank has been preserved on the site.

Links shows number of external links/total links on the page.

Visits show estimated number of daily visitors for the site (requires Compete API);

Nofollow icon allows you to instantly highlight all nofollow links on the page.

Now Research Everything in Detail

Inspect Page Links:

Clicking on the status bar stats will reveal a panel containing all the page links. The good thing is that if you have the panel open all the time, it will display links for each new page you land on:

Each link displayed has its count and percentage of total number.You can also export the data to a CSV file.

Evaluate On-Page SEO:

The STATS tab in the same panel allows you to diagnose the page. It evaluates the following criteria: